综采工作面更换液压支架掩护梁的方案与技术要点
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摘要
为了在工作面现场安全、快捷地更换因断层构造而损坏的液压支架掩护梁,采用了铺网推进与补强支护以稳定顶板环境,开凿台阶式硐室以形成维修空间,抬升、前移支架至刮板输送机中部槽上以免除中部槽拆除作业,利用相邻支架架设π形梁以起吊损坏部件等一系列方案与措施。实践证明,这种现场更换支架损坏部件的方案安全、高效,可为液压支架的工作面现场的更换损坏部件作业提供借鉴。
In order to safely and quickly replace the shield beam of the hydraulic support damaged due to faulted tectonics on the mining face, the following scheme was adopted: the mesh-laying propulsion and the reinforced support were adopted to stabilize the roof surroundings, the stepped chambers were excavated to form maintenance space, the supports were lifted and moved forward to the middle chute of the scraper conveyor so as to avoid the dismantlement the middle chute, and π shaped steel beams were erected with the aid of adjacent supports to hoist damaged parts. Practice showed that the scheme of replacing the damaged part of the hydraulic support on site was safe and efficient, which offered reference for replacing the damaged part of the hydraulic support on the mining face.
In order to safely and quickly replace the shield beam of the hydraulic support damaged due to faulted tectonics on the mining face, the following scheme was adopted: the mesh-laying propulsion and the reinforced support were adopted to stabilize the roof surroundings, the stepped chambers were excavated to form maintenance space, the supports were lifted and moved forward to the middle chute of the scraper conveyor so as to avoid the dismantlement the middle chute, and π shaped steel beams were erected with the aid of adjacent supports to hoist damaged parts. Practice showed that the scheme of replacing the damaged part of the hydraulic support on site was safe and efficient, which offered reference for replacing the damaged part of the hydraulic support on the mining face.
引文
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[3]张敏.综采工作面液压支架掩护梁更换技术实践[J].煤炭科学技术,2012,40(2):91-93.
[4]张飞龙,孙波,刘河川.大采高工作面支架掩护梁更换技术应用[J].神华科技,2014,12(4):25-28,45.
[5]张东风,林长江.综采工作面液压支架掩护梁的更换[J].陕西煤炭,2011,30(2):61-62.
[6]孟祥光,吕长宽,黄永峰,等.快速更换支架顶梁技术在祁东煤矿综采面的应用[J].山东煤炭科技,2011(3):226-227.
[7]徐占春,牛博.更换综采工作面液压支架顶梁、掩护梁在灵东煤矿中的应用[J].内蒙古煤炭经济,2014(10):185,188.
[8]刘建强,吕国庆.综采工作面更换液压支架掩护梁技术的应用[J].煤炭科技,2017(3):81-85.